Add boilerplate for Strict-Transport-Security headers.

Migrated to this repo from h5bp/html5-boilerplate#1266.
Port wiki docs to README's

Move the wiki documentation into a README for each server config dir.

Make formatting improvements to the IIS documentation.
[apache] Include detailed documentation

Populate `apache` dir README with detailed documentation previously
assembled by the HTML5 Boilerplate project.
Update and simplify project README
Various Fixes and Updates

Remove duplicate http variable
Remove additional '.ico' in mimeTypes
Add names variable
Close res.on('header',function{});
Remove compress middleware (built-in)
Update compress function
[apache] Uncapitalize "Edge"

 The main reason for the modification is to be consistent with the
 official MSDN recommendation:
    - http://msdn.microsoft.com/en-us/library/jj676915%28v=vs.85%29.aspx
Update iis/IIS6-README.md

Fix a few typos (using, negligible, separate)
code style consistency across nginx configs
one more space
removing node subfolder
add node repository as a submodule

reference #115
Change WOFF MIME type to `application/font-woff`

The WOFF MIME Type was formally registered as `application/font-woff`:
- http://www.iana.org/assignments/media-types/application/font-woff
[apache] Update documentation links

Use `current` in the URLs instead of a version number so that the links
always point to the documentation for the latest stable Apache release
[apache] File concatenation requires `mod_include`
[apache] Extend the list of forbidden files

Add Emacs auto-save files (http://emacswiki.org/emacs/AutoSave) and
vim swap files (http://vimdoc.sourceforge.net/htmldoc/recover.html)
to the list of forbidden files.

Thanks @feross and @awebdeveloper.
[apache] Add `Content Security Policy` boilerplate
[apache] AddCharset & AddType require `mod_mime`

Documentation: http://httpd.apache.org/docs/current/mod/mod_mime.html
Add `CONTRIBUTING.md` file

Providing the `CONTRIBUTING.md` file alows us to take advantage
of GitHub's UI and prompt contributors to read the repository's
guidelines before creating an issue or opening a pull request:
https://github.com/blog/1184-contributing-guidelines

The `CONTRIBUTING.md` file content is based on @necolas's Issue
Guidelines: https://github.com/necolas/issue-guidelines
expires.conf: remove duplicate .ico cache headers
Don't cache .html or .htm files

Thanks @aitte, ref #133